https://github.com/ritave/snap-passwordManager

An example Metamask Snap that manages user passwords
https://github.com/ritave/snap-passwordManager

Last synced: 3 months ago
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An example Metamask Snap that manages user passwords

• Host: GitHub
• URL: https://github.com/ritave/snap-passwordManager
• Owner: ritave
• Archived: true
• Created: 2022-04-19T11:53:26.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2023-02-01T11:12:49.000Z (over 1 year ago)
• Last Synced: 2024-01-22T23:29:06.620Z (5 months ago)
• Language: HTML
• Size: 1.16 MB
• Stars: 33
• Watchers: 3
• Forks: 10
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md

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• awesome-metamask-snaps - ritave/snap-passwordManager - A secure password manager using encrypted data storage available to Snaps (Snaps)

README

        
# Password Manager snap

This is an example Metamask Snap that allows the user to manage their passwords for websites and store them securely in Metamask.

https://user-images.githubusercontent.com/1614945/164003634-69949fd6-9946-4550-9aa3-edbbb8b5fb4c.mov

### How This Works

This Snap uses the entropy for [Garlicoin](https://garlicoin.io/) to encrypt the user's passwords. It requests the following permissions: 

```JSON

"initialPermissions": {

  "snap_confirm": {},

  "snap_manageState": {},

  "snap_getBip44Entropy_69420": {}

},

```

_* 69420 is the chain ID for Garlicoin._

It then uses [@MetaMask/browser-passworder](https://github.com/metamask/browser-passworder) to encrypt the full state with the encryption key being the Bip44 entropy derived by MetaMask. 

```Javascript

import * as passworder from '@metamask/browser-passworder';

const entropy = await wallet.request({

  method: 'snap_getBip44Entropy_69420',

});

const newState = {

  [website]: { username, password },

};

const encryptedState = {

  passwords: await passworder.encrypt(entropy.key, newState),

};

wallet.request({

  method: 'snap_manageState',

  params: ['update', encryptedState],

});

```

It also has some extra features like using [async-mutex](https://www.npmjs.com/package/async-mutex) for async-safe state management and fuzzy searching for retrieving specific passwords. Follow the steps below to run this snap locally and see how it works.

### Setup

```shell

yarn install

yarn build

yarn serve

```

### Testing and Linting

Run `yarn test` to run the tests once.

Run `yarn lint` to run the linter, or run `yarn lint:fix` to run the linter and fix any automatically fixable issues.